Cylinder Boring Machine FT7
The FT7 is a newer design of cylinder boring machine for repairing automobile and tractor cylinders. The spindle moves freely above a floating table, so the operator slides it to the top of the cylinder to be bored instead of winding a table into place, and a 4-point automatic centring system then finds the bore. That ...
What This Machine Does
The FT7 is a newer design of cylinder boring machine for repairing automobile and tractor cylinders. The spindle moves freely above a floating table, so the operator slides it to the top of the cylinder to be bored instead of winding a table into place, and a 4-point automatic centring system then finds the bore. That combination is what makes the setup on each cylinder both fast and repeatable. The boring range is 39 to 180 mm with various tool holders to cover it, maximum boring depth is 400 mm, maximum longitudinal spindle travel is 1058 mm and cross travel 58 mm, with spindle speed from 50 to 100 rpm. An air floating V-fixture is available, which is what allows the machine to work on 60 degree and 45 degree V cylinder blocks rather than inline blocks only. For a shop that sees a mix of inline and V engines, that fixture is usually the deciding item on the quotation.
Why Buyers Choose This Machine
- Spindle moves freely above the floating table, so setup over each cylinder is quick
- 4-point automatic centring finds the bore rather than leaving the operator to dial it in
- 39 to 180 mm boring range with a choice of tool holders covers car and tractor cylinders
- 400 mm maximum boring depth reaches deep tractor and diesel cylinders
- 1058 mm of longitudinal spindle travel covers a long block without re-clamping
- Air floating V-fixture lets the same machine bore 60 degree and 45 degree V cylinder blocks
- Low spindle speed range of 50 to 100 rpm suits large-diameter boring where surface speed rises with the bore
Where Cylinder Boring Machine FT7 Earns Its Place
Problems It Solves
- Centring the machine over every cylinder by hand is slow and varies between operators
- Winding a heavy table into position under a fixed spindle wastes time on each bore
- V blocks cannot be bored square without a fixture that holds them at the bank angle
- A narrow boring range forces a second machine for large-diameter work
- Long blocks need spindle travel that a short-bed machine cannot provide
Who It Is For
- Engine rebuild shops working on both inline and V engine blocks
- Automobile and tractor repair workshops doing cylinder work in house
- Machine shops taking in cylinder reboring as a subcontract service
- Distributors supplying engine reconditioning equipment into export markets
Application Scenarios
- Reboring automobile engine cylinders across a mixed intake of block types
- Tractor cylinder repair in an agricultural machinery workshop
- Boring 60 degree and 45 degree V blocks using the air floating V-fixture
- Large-diameter cylinder work up to 180 mm where a small borer cannot reach
- Deep cylinder bores to 400 mm on diesel and industrial engines
Technical Detail
Technical Features
- Spindle moves freely above the floating table
- 4-point automatic centring system
- Range of boring diameter 39 to 180 mm
- Maximum boring depth 400 mm
- Maximum longitudinal travel of spindle 1058 mm
- Maximum cross travel of spindle 58 mm
- Spindle speed 50 to 100 rpm
- Various tool holders covering the full 39 to 180 mm range
- Air floating V-fixture for 60 degree and 45 degree V cylinders
Specifications
| Machine type | Cylinder boring machine with floating table |
|---|---|
| Models | FT7 |
| Range of boring diameter | 39 to 180 mm |
| Max boring depth | 400 mm |
| Max longitudinal travel of spindle | 1058 mm |
| Max cross travel of spindle | 58 mm |
| Spindle speed | 50 to 100 rpm |
| Centring | 4-point automatic centring system |
| Table | Floating table |
| Fixture option | Air floating V-fixture for 60 degree and 45 degree V cylinders |
| Applications | Repairing automobile and tractor cylinders |
Figures above are taken from the product information we hold. Send us your application and we will confirm the exact specification for the model quoted.
How It Is Built and What Can Be Changed
Operations Performed
- Boring
- Reboring
Quality Control
- Bore diameter and cylindricity checked on a test block at both ends of the 39 to 180 mm range
- 4-point centring repeatability verified on the assembled machine
- Spindle longitudinal and cross travel checked against the 1058 mm and 58 mm ratings
- Spindle speed verified across the 50 to 100 rpm range
- Machine run in under a test cut before painting and packing
Customisation Options
- Tool holders specified across the part of the 39 to 180 mm range you actually use
- Air floating V-fixture added where 60 degree or 45 degree V blocks are bored
- Block fixturing specified for your most common engine types
- Supply voltage frequency and manual language set to your market
How It Compares With the Alternatives
| XAIMC TB8016 air-floating fine boring machine | The TB8016 uses air-floating spindle location with a vertical measuring device; the FT7 uses a floating table with 4-point automatic centring and a 1058 mm longitudinal spindle travel |
|---|---|
| XAIMC T8016A cylinder boring machine | The T8016A is a clamp-on machine boring 80 to 165 mm; the FT7 is a floor machine covering 39 to 180 mm with the block set on its own table |
| Boring a V block without a V-fixture | Without a fixture holding the bank angle the bore cannot be taken square to the cylinder axis; the air floating V-fixture sets 60 and 45 degree banks correctly |
Running the Machine
Step 1
Set the block on the floating table, using the air floating V-fixture if it is a 60 or 45 degree V block
Step 2
Slide the spindle above the table to the cylinder you are boring
Step 3
Let the 4-point automatic centring system find the bore
Step 4
Fit the tool holder for the diameter within the 39 to 180 mm range
Step 5
Set spindle speed within 50 to 100 rpm for the bore diameter
Step 6
Bore to depth within the 400 mm rating and measure the finished bore
Step 7
Move the spindle to the next cylinder and repeat
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Questions About Cylinder Boring Machine FT7
What bore sizes does it cover?
39 to 180 mm, with various tool holders to fit the machine across that range. Maximum boring depth is 400 mm.
Can it bore V engine blocks?
Yes, with the air floating V-fixture, which makes the machine available to work with 60 degree and 45 degree V cylinders.
How does it find the bore centre?
A 4-point automatic centring system, with the spindle moved freely above the floating table to the cylinder you are working on.
What spindle travel does it have?
Maximum longitudinal spindle travel is 1058 mm and maximum cross travel is 58 mm.
What spindle speed does it run at?
50 to 100 rpm, which suits the large diameters this machine is built to bore.
What voltage will it be supplied at?
We set supply voltage and frequency to your market. Confirm your shop supply when you place the order.
What are your payment and trade terms?
FOB CFR and CIF. Payment is 30 percent by T/T on order and 70 percent before shipment, or an irrevocable L/C at sight.
Request a Quote on the Cylinder Boring Machine FT7
Send us the work you need it to do, the voltage on your site and the port you ship to. We will come back with the model, the tooling and the lead time.